I have been using smbclient to allow access to my NAS. This has worked well in 14.04. But around Jan 2015 it has stopped working. I get extremely slow access to Windows netowrk and then repeated request for password and no access. I know the passwords etc. are correct. But appears now that smbclient has stopped working. I am not a Linux expert, but I have succesfully used smbclient more or less since 9.04, so I do believe it is a bug. IPossibly linked, an updaye around the same time broke my HP wireless printer driver and i was forced to update that. perhaps related?

package libmysqlclient18 (not installed) failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libmysqlclient18/changelog.Debian.gz', which is different from other instances of package libmysqlclient18:amd64

package mysql-client-5.5 5.5.38-0ubuntu0.14.04.1 failed to install/upgrade: trying to overwrite '/usr/share/man/man1/mysqlcheck.1.gz', which is also in package mysql-client-core-5.5 5.5.37-0ubuntu0.14.04.1

package python-oslo-serialization (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/python2.7/dist-packages/oslo/serialization/__init__.py', which is also in package python-oslo.serialization 1.1.0-0ubuntu1

package libwbclient0 2:4.1.6+dfsg-1ubuntu2.14.04.3 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libwbclient0/copyright', which is different from other instances of package libwbclient0:i386

When I try to apt-get printer-driver or anything dependent on it, dpkg returns an error. See here: http://askubuntu.com/questions/381806/cant-reinstall-ubuntu-desktop-due-to-strange-error-with-printer-driver-pnm2ppa?noredirect=1#comment487444_381806 for more details